Answer:
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Preventing soil erosion: 1 Mark each
Soil can be conserved by following any of the methods mentioned below:
Any three:
1. Practicing no-till farming. In no-till farming, crops are allowed to remain rather than being ploughed at the end of the season. This keeps the soil tight.
2. Using terrace farming or contour farming. In this method of farming, crops are planted on steps to prevent soil from being run off with rainwater.
3. Planting rain gardens. Rain gardens are planted along slopes of a hill to keep the soil tight.
4. Using a rain barrel. Rain barrels store water instead of letting it run off, eroding soil along with it.
5. Planting windbreaks. Windbreaks or shelterbelts stop the flow of wind, preventing soil erosion by wind.
6. Restoring wetlands. This gives the water some place to go without eroding the soil in other places